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“A Nation that destroys its soil destroys itself.” – Franklin D. Roosevelt.
We have learned some harsh lessons about how to treat our soil. While most of us are aware of the problems of the past, some agricultural operations in the world are not heeding those lessons.
We all know that healthy soil is essential to feed the ever-increasing population of the world. However, industrial agriculture practices continue to damage and deplete our natural resources – of which soil ranks among...

Reliable empirical models describing lead (Pb) transfer in soil‐plant systems are needed to improve soil environmental quality standards. A greenhouse experiment was conducted to develop soil‐plant transfer models to predict Pb concentrations in carrot (Daucus carota L.). Soil thresholds for food safety were then derived inversely using the prediction model in view of the maximum allowable limit for Pb in food. The two most important soil properties that influenced carrot Pb uptake factor (ratio of Pb concentration...

With the growing season nearly upon us, Welsh farmers are being given an opportunity to discover the benefits of soil analysis through a number of free soil testing workshops at Farming Connect. Regular soil testing enables farmers to adopt a targeted approach to fertiliser use, thus providing significant cost savings, according to Lisa Roberts of Farming Connect. Soil analysis also identifies other factors that may be limiting performance, such as soil pH.
The workshops are being held across Wales in March and...

ABSTRACT:Optimal pH for most biodegradation processes falls between 6.5 and 8.5. Enhanced bioremediation in poorly buffered soils and ground water is likely to lower pH below 6.5 as the added electron donor produces carbon dioxide and or ganic acids. The common agricultural practice of liming soils adds alkalinity and adjusts soil pH by mixing finely divided insoluble calcium ca rbonate into the shallow subsurface. Conversely, delivery of an insoluble solid buffer into deeper soils and ground water aquifers...

Silver (Ag) is being increasingly used in a range of consumer products, predominately as an antimicrobial agent, leading to a higher likelihood of its release into the environment. This study investigated the toxicity of Ag to the soil nitrification process in a European and Australian soils in both leached and unleached conditions. Overall, leaching of the soils was found to have a minimal effect on the final toxicity data with average leaching factors of approximately 1. Across the soils the toxicity was found...

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